Asus P6t - what speeds do the Pcie slots run for Crossfire?

J

JCDenton

Gawd
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Jan 6, 2008
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On newegg's page it says they will run at 16x 16x 4x, but what happens if I put a 5970 in the top slot, a 5870 in the bottom slot, and a sound card in the middle slot? Will the graphics cards run at 16x and 4x, bottlenecking one of them?
 
I think actually it runs in 16x/8x/8x in that case, but not completely sure.
Also, you'd need a longer X-Fire or SLI bridge for that to work.
In my case I have a 16x videocard and two 8x raid cards,
and I believe they're running at 16x/8x/8x.
 
The two PCI slots closest to the processor should always run at 16x on that mobo. At least I am reasonably sure. You could download the manual for it, I bet the info is in there.
 
Kdot said:
The two PCI slots closest to the processor should always run at 16x on that mobo. At least I am reasonably sure. You could download the manual for it, I bet the info is in there.
Click to expand...

I'm trying to keep the cards spread apart for heat issues. Basically I want to find out if I should go ahead and get a long crossfire bridge or if it's not going to work with the 5870 in the bottom slot.
 
If the third slot is unoccupied, the first two will both run at 16x. If the third slot is occupied (even if the second isn't), they will run at 16x/8x/8x.
 
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